Improved window-sash fastener



UNITED STATES PATENT OFFICE.

SAMUEL n. wILLIAMs, or' snoEMAKE'nsvIL-LE, PENNSYLVANIA.

IMPa'oVEn wlNoow-sAsl-l FASTENER.'

Specification forming part of Letters Patent No. 384Go, dated May 5, v1863.

To all, whom it may concern:

l Beitknown that I, SAMUEL H.WILLIAMS`, ofu

Shoemakersville, county of Berks, and Stateot' Pennsylvania, have invented certain new and useful Improvementsin Window-Sash Fasteners; and Ido hereby decla-re that the fol# lowing isa full and exact description thereof, l reference being had to 'the accompanying drawings, and' to the letters of vreferencel marked thereon, i-n whichf .Figure 1 is a perspective view, and Fig. 2

is a longitudinal section thereof.

A Thc --nature of my invention consists in having an elongated ease or open box, A, vmade of cast-iron or other suitable material,

which may readily be fitted into one 'of the lto sustain the weightot' any window-sash ^at pleasure. J is a sliding holt. which forms a self-lock by means ot' a spiral spring, L, placed on the- -screw l), which presses against the spring C and the guide-sleeve of boltJ. The screw D also' forms 'a substantial guide for the bolt J, whlch bolt is properly litted into the upper end of the'case or open box A, and projects through the face of case A, and forms a complete selflock for a window when closed down.

T' is a thumb-latch, which projects through the inner side of vthe window-sash, and is screwed into the bolt J and operates in a cor, responding slot madey therefor, by which means the bolt is pressed baekand the win-l dow-sash raised or let down at pleasure.

In opening a wlndow'with this invention the operator merely presses the thumb-latch back and unlocksthe window, and simultaneousiy raise-s' the window-sash upward. IIn so doing the serrated oval rollers assume the position as represented in dotted lines, Fig. 2.. The lwindow being raised to any desirable height, it will remain so by-means of the ser rations of the oval rollers B B (and the pressure of the spring C) catching and pressing against the window-frame and properly hold` in g the window-sash. In closing the sash down, it is merely pulled down by the hand, the serrated oval rollers B B make a half-revolution until-the smooth surface on the opposite side or edge of the rollers slide against the window-frame, and the sash is conveniently yclosed down, which makes it a very useful and durable machine. y

I do not claim the spring C, as' there aredif ferent devicesA of springs used for this pur pose; but y What I do ,claim-,as new and myinvention and desire to secure by Letters Patent, is-

The serrated ovalrollers B B, in combina tion with the adjustable screw D, when sait? devices are usedfor the purpose as describec and set forth.

f SAMUEL liELWILLIAlvIS. Witnesses: y

GEORGE PEINTz, WILLIAM BERGER. 

